[Objective]We aimed to study the degradation of 1,1,2,2-tetrachloroethane by mechanochemical method.[Method] Nano-scale NiO particles were prepared by homogeneous precipitation method using nickel sulfate hexahydrate ...[Objective]We aimed to study the degradation of 1,1,2,2-tetrachloroethane by mechanochemical method.[Method] Nano-scale NiO particles were prepared by homogeneous precipitation method using nickel sulfate hexahydrate NiSO 4 ·6H 2 O as a raw material and ammonium carbonate (NH 4) 2 CO 3 as precipitant.The catalytic effect of NiO on the degradation of 1,1,2,2-tetrachloroethane has been investigated.[Result]The concentrations of chloride ion increased as the enhancement of initial concentrations of tetrachloroethane and amounts of catalyst,and the degradation efficiency of tetrachloroethane in water were influenced by the initial concentrations of tetrachloroethane,amounts of catalyst and so on.[Conclusion] This research could provide a novel method for the degradation of 1,1,2,2-tetrachloroethane as an organic pollutant.展开更多
Poly(1,1,2,2- tetrahydroperfluorodecyl acrylate) (poly (TA-N)) was synthesized in laboratory. The resulting morphology of rapid expansion of supercritical solution (RESS) sprays of poly(TA - N) was investigated. At ap...Poly(1,1,2,2- tetrahydroperfluorodecyl acrylate) (poly (TA-N)) was synthesized in laboratory. The resulting morphology of rapid expansion of supercritical solution (RESS) sprays of poly(TA - N) was investigated. At apre - expansion temperature of 45℃), amorphous polymer was formed. At temperature around 60 ℃ to 80 ℃ , fibers were formed. Increase of temperature increasesparticle size slightly. At temperature of 105℃ , most of particles are spheres. The RESS is an attractive process. To apply the polymers desired for coating applications in an organic solvent - free process that is economically viable , and it will have implications for pollution prevention during polymer film展开更多
基金Supported by Guangxi National Natural Science Foundation (No.0640066)Key Laboratory Project of Guangxi Zhuangzu Autonomous Region,China (No. 0702K020 )Guangxi Department of Education Research Project (No. 200911MS60)
文摘[Objective]We aimed to study the degradation of 1,1,2,2-tetrachloroethane by mechanochemical method.[Method] Nano-scale NiO particles were prepared by homogeneous precipitation method using nickel sulfate hexahydrate NiSO 4 ·6H 2 O as a raw material and ammonium carbonate (NH 4) 2 CO 3 as precipitant.The catalytic effect of NiO on the degradation of 1,1,2,2-tetrachloroethane has been investigated.[Result]The concentrations of chloride ion increased as the enhancement of initial concentrations of tetrachloroethane and amounts of catalyst,and the degradation efficiency of tetrachloroethane in water were influenced by the initial concentrations of tetrachloroethane,amounts of catalyst and so on.[Conclusion] This research could provide a novel method for the degradation of 1,1,2,2-tetrachloroethane as an organic pollutant.
文摘Poly(1,1,2,2- tetrahydroperfluorodecyl acrylate) (poly (TA-N)) was synthesized in laboratory. The resulting morphology of rapid expansion of supercritical solution (RESS) sprays of poly(TA - N) was investigated. At apre - expansion temperature of 45℃), amorphous polymer was formed. At temperature around 60 ℃ to 80 ℃ , fibers were formed. Increase of temperature increasesparticle size slightly. At temperature of 105℃ , most of particles are spheres. The RESS is an attractive process. To apply the polymers desired for coating applications in an organic solvent - free process that is economically viable , and it will have implications for pollution prevention during polymer film
